Prime-Time TV Rankings

CBS extends winning streak

CBS maintained its perfect score so far this season, grabbing its 12th consecutive ratings win last week. The network averaged 11.7 million viewers in prime time and claimed six of the week's top 10 programs and 13 of the top 20 (including "CSI," the week's No. 1 show), according to Nielsen Media Research figures.

NBC was second with 10.2 million viewers. Its Sunday night football telecast was the No. 2 show, with Monday's "Deal or No Deal" ranked No. 3 and freshman drama "Heroes" No. 6.

ABC had 8.4 million viewers, while Fox had 6.1 million viewers and the CW drew 3.6 million viewers. Among the Spanish-language networks, Univision led with 3.6 million viewers.

Here are the rankings for national prime-time network television last week (Dec. 4-10) as compiled by Nielsen Media Research. They are based on the average number of people who watched a program from start to finish. Nielsen estimates there are 283.5 million potential viewers in the U.S. ages 2 and older. Viewership is listed in millions.